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National Geographic Exploration
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Get extreme and decorate your desktop with a selection of the best images from Exploration. Click on thumbnails (right) to browse images. To download, click one of the monitor options (below) and follow specific instructions for Windows or Macintosh.
Photo: A scientist in a high-tech thermal suit on Italy's Mount Etna
Download wallpaper: Large Monitor / Small Monitor  (Instructions below)
Risky Business
French researcher Charles Riviáere has no delusions about the protection offered by his high-tech thermal suit on Italy’s Mount Etna. Sweating profusely even before he gets close enough to collect a sample of 2,000F (1,000C) lava, the scientist knows that one well-placed lava bomb—molten rock hurtling through the air—could flatten him. Still, like a fearless knight of old, he charges on.

Photograph by Carsten Peter

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Instructions
For Windows 95 or Higher

1. Determine the image size appropriate for your monitor.

2. Click the size you wish to download.

3. After the image appears in your browser, click the right-hand button on your mouse.

4. On the menu that pops up, select SET AS WALLPAPER.

For Mac OS X

1. Determine the image size appropriate for your monitor.

2. Click the size you wish to download.

3. After the image appears in your browser, drag the image onto your desktop.

4. From the Apple menu select SYSTEM PREFERENCES.

5. Select DESKTOP.

6. In the pull-down menu marked "Collection," select CHOOSE FOLDER.

7. Locate desired image file and double-click it.

For Mac OS 9 or Lower

1. Determine the image size appropriate for your monitor.

2. Click the size you wish to download.

3. After the image appears in your
browser, drag the image onto
your desktop.

4. From the Apple Menu (at the
top left of your screen) select CONTROL PANELS, then DESKTOP PICTURES or APPEARANCE. (If the new window reads APPEARANCE, select the tab that reads DESKTOP.)

5. If necessary, click REMOVE PICTURE to clear the current desktop picture.

6. Click SELECT PICTURE or PLACE PICTURE, then locate and click the image file.

7. Click OK or CHOOSE.

8. Finally, click SET DESKTOP.



Large monitor Small monitor Photo: Mastigias jellyfish engulf a diver Photo: Crossing the Sahara in Libya on a camel Photo: The icy fingers of Cordillera Sarmiento Photo: Marum crater in Vanuatu Photo: A Vickers Vimy biplane buzzing the Pyramids at Giza Photo: A scientist in a high-tech thermal suit on Italy's Mount Etna Photo: An icy 300-foot (90-meter) shaft in a Greenland glacier Photo: A desert village with a leaky water tank